This is a Non-Federal dataset covered by different Terms of Use than

National Geochemical Survey Locations and Results for Iowa

Metadata Updated: July 19, 2013

Access & Use Information

Non-Federal: This dataset is covered by different Terms of Use than License: No license information was provided.

Downloads & Resources


Metadata Date March 4, 2008
Metadata Created Date July 19, 2013
Metadata Updated Date July 19, 2013
Reference Date(s) March 23, 2006 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from Iowa Geospatial Data Clearinghouse

Additional Metadata

Resource Type Dataset
Metadata Date March 4, 2008
Metadata Created Date July 19, 2013
Metadata Updated Date July 19, 2013
Reference Date(s) March 23, 2006 (publication)
Responsible Party Iowa Department of Natural Resources (Point of Contact)
Contact Email
Access Constraints Use Constraints: The development of the coverages in the NRGIS Library represents a major investment of staff time and effort. As a professional responsibility, the the Iowa DNR expects to receive proper credit when these GIS coverages are utilized. The Department also expects that the original documentation will remain with any redistribution of these coverages. Mercury is a difficult element for which to obtain accurate analyses. Samples can easily be contaminated with Hg during handling, storage, and preparation for analysis. Mercury can also be lost from samples during the drying process or while in storage. Recently collected samples were handled and stored in a manner that should result in few such problems. However, many Hg data in the NGS are based on reanalyses of archival samples, e.g., NURE samples, that were neither collected using protocols appropriate for Hg analysis, nor stored under conditions that would necessarily preserve the original Hg concentrations. Some NURE samples in the eastern US were very likely contaminated by Hg at some point after collection (e.g., all samples from Allegany County, Maryland). At the present time, it is not known which archival samples may have been contaminated with Hg in the laboratory, and thus extreme caution should be exercised in interpreting NGS data., Access Constraints: None
Bbox East Long -90.230266
Bbox North Lat 43.459707
Bbox South Lat 40.527909
Bbox West Long -96.428030
Coupled Resource
Frequency Of Update asNeeded
Harvest Object Id 69858702-5cb5-4dd7-8252-5cafe2224113
Harvest Source Id 2abfde33-b6a6-461c-879b-612565f3a067
Harvest Source Title Iowa Geospatial Data Clearinghouse
Licence Although efforts have been made in correcting errors in order to make this information useful to the Department, the Department assumes no responsibility for errors in the information. Similarly, the Department assumes no responsibility for the consequences of inappropriate uses or interpretations of the data made by anyone to whom this data has been made available. The Department bears no responsibility to inform users of any changes made to this data. Anyone using this data is advised that precision implied by the coverage may far exceed actual precision. Comments on this data are invited and the Department would appreciate that documented errors be brought to staff attention.
Metadata Language
Metadata Type geospatial
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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